Biology Mcqs 02
The smallest bone in the human body is:FemurStapes HumerusUlnaB) Stapes The stapes bone in the ear is the smallest.
Which vitamin helps in blood clotting? Vitamin AVitamin C Vitamin D Vitamin KD) Vitamin K Vitamin K is essential for blood clotting.
The green color of leaves is due to:CaroteneXanthophyllChlorophyllAnthocyanin: C) ChlorophyllChlorophyll gives leaves their green color
Which human organ is responsible for pumping blood?Brain HeartKidneyLiverB) HeartThe heart pumps blood throughout the body.
Which organ controls all body functions? Heart BrainLiver LungsB) Brain The brain is the control center of the body.
Which blood group is known as the universal recipient?AB ABO C) ABBlood group AB can receive blood from all groups
What is the function of the large intestine?Absorption of nutrients Production of bileAbsorption of waterDigestion of proteinsC) Absorption of waterThe large intestine absorbs water from waste material.
Which part of the plant absorbs water? StemRootLeaf FlowerB) Root Roots absorb water and minerals from the soil.
Which organ is known as the "voice box"?TracheaLarynx PharynxBronchusB) Larynx The larynx is called the voice box because it produces sound.
What type of joint is found in the shoulder?Hinge joint Pivot joint Ball and socket joint Gliding jointC) Ball and socket jointThe shoulder joint allows movement in all directions.
Which pigment gives red color to blood? HemoglobinChlorophyllCaroteneMelaninA) HemoglobinHemoglobin carries oxygen and gives blood its red color.
Which part of the eye controls the amount of light entering?CorneaLensIrisRetinaC) Iris The iris adjusts the size of the pupil to control light entry.
What is the main function of the rib cage?Protect the stomach Support the brainProtect the heart and lungsHelp in walkingHelp in walkingC) Protect the heart and lungsThe rib cage guards vital organs like the heart and lungs.
Which organ helps in detoxifying the blood?KidneyLiver HeartLungs B) LiverThe liver removes toxins from the blood.
Which part of the brain controls heartbeat and breathing?CerebrumCerebellumMedulla oblongataThalamusC) Medulla oblongata The medulla regulates vital involuntary functions.